Flexible drill-hoe



(No Model.)

J. E. KELLER.

FLEXIBLE DRILL HOE.

Patented Jan. 2, 1888.

I l mvmwon.

v M MhMd/ATTORNEY- WITNESSES UNITED STATES PATENT O FICE.

JOHN F. KELLER, OF MARTINSBURG, WEST VIRGINIA.

FLEXIBLE DRILL-HOE.

SPECIFICATION forming part of Letters Patent No. 269,943, dated January 2, 1883.

Application filed June 6, 1882. (No model.) i

To all whom it may concern Be it known that I, JOHN F. KELLER, a citizen ot' the United States of America, residing at Martinsburg, in the county of Berkeley and State of West Virginia, have invented certain new and useful Improvements in Check- Springs, Brace-Bars, and Lugs for Flexible Hoes, of winch the lollowingisa specification, reference being had therein to the accompanying drawings.

My invention relates to flexible hoes for grain-drills andcultivators; and itconsists ot'a novel check-spring, brace-bar, and lug, which will be fully understood by the following description and claims.

In the accompanying drawings, Figure 1 is aside view of a boot or hoe-shank and hoe for a grain-drilkvwith the drag-bars and gum spring detached from the machine. Fig. 2 is an enlarged view, showing my improved bracebar and lug in connection with the boot. Fig. 3 shows the same lug on the shank of a cultivator.

In the drawings, A represents a grain-drill boot, and B and O are'the drag-bars attached thereto, and D is the coupling-link, upon which and its bolts there has usually come a great strain; and the chief object of my improvement is to prevent this strain and the consequent wear and breakage.

Instead of casting the boot with the usual ears and bolt-holes for the attachment of the drag-bars, I cast the boot or make the shank of a cultivator with a strong projection or lug, H, thereon. This strong lug has a broad hearing on the link D, and holds the link a little below a straight line with the drag-bar B, and in such a position as when the hoe meets with a fixed stone or other obstruction the usual excessive strain on the rivet and bolt is thus reversible, and is fastened to the boot or shank by means of a bolt, L, the head of which is placed in a countersink, so as to give a smooth surface to the trout of the point; and

.the shank or boot has a slot, M, for the bolt L,

so that the point, when worn ofl', may be let down, and thus be long enough to be used again, and thus last much longer. The point is easily removed, and may be ground or filed, and thus sharpened, without going to a [lacksmith.

I do not broadly claim a reversible and adjust-able point for cultivators and grain-drills. Havingdescribed myinvention, whati claim 1. As an improvement in flexible hoes, the spring brace-bar B, having the hearing I, in combination with the lug H on the flexible hoeshank and the pivoted link D, substantially as and for the purposes set forth.

2. The spring brace-bar B, having the bear-- 

